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ConstraintViolationType

Enum ConstraintViolationType 

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pub enum ConstraintViolationType {
    Unique,
    ForeignKey,
    NotFound,
    Other(String),
}
Expand description

The type of constraint violation that caused the error

This is the type of constraint on the database’s definition that is violated. For example, if an operation tries to insert an entry that would cause a duplicate in a unique column, the ConstraintViolationType::Unique should be used.

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Unique

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ForeignKey

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NotFound

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Other(String)

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impl Debug for ConstraintViolationType

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for ConstraintViolationType

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for ConstraintViolationType

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impl PartialEq for ConstraintViolationType

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fn eq(&self, other: &ConstraintViolationType) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for ConstraintViolationType

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impl<T> Any for T
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fn type_id(&self) -> TypeId

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Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
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Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
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fn equivalent(&self, key: &K) -> bool

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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fn into_sql<T>(self) -> Self::Expression
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Convert self to an expression for Diesel’s query builder. Read more
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Given ptr, which was obtained from a prior call to Self::borrow(), return a value with the same nominal lifetime which is guaranteed to survive mutations to Self. Read more
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The type returned in the event of a conversion error.
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